linux-kernel - [PATCH] [objtoo] fix memory leak in special_get

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Message-Id: <20200622020434.18159-1-gaurav1086@gmail.com>
Date:   Sun, 21 Jun 2020 22:04:34 -0400
From:   Gaurav Singh <gaurav1086@...il.com>
To:     gaurav1086@...il.com, Josh Poimboeuf <jpoimboe@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        linux-kernel@...r.kernel.org (open list)
Subject: [PATCH] [objtoo] fix memory leak in special_get_alts

Free alt before returning to avoid memory leak.

Signed-off-by: Gaurav Singh <gaurav1086@...il.com>
---
 tools/objtool/special.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/objtool/special.c b/tools/objtool/special.c
index e74e0189de22..f6f7dee1ba77 100644
--- a/tools/objtool/special.c
+++ b/tools/objtool/special.c
@@ -188,8 +188,10 @@ int special_get_alts(struct elf *elf, struct list_head *alts)
 			memset(alt, 0, sizeof(*alt));
 
 			ret = get_alt_entry(elf, entry, sec, idx, alt);
-			if (ret)
+			if (ret) {
+				free(alt);
 				return ret;
+			}
 
 			list_add_tail(&alt->list, alts);
 		}
-- 
2.17.1